Mathematics page

In the math time, Mr. Stevonson gave me some math challenge.

He said not many people got the right answer.

So it made me really interested. I wanted to solve the problem.

Here's the question :

'There are very large land and you sell the area to someone.

The girth must be 120m. And for each square meter, It costs 3000$.

How large it will be? '

He also gave me an example. I think this was the trick. :

'Look at the 30*4 square.

The dimension of it is 900. So it costs 900*3000=2700000$'

I have read the book before about Diagram. And it said 'circle is the largest shape '.

So I decided to calculate my answer with circle shape.

Solution:

To figure out the girth of circle, you should know formula first.

Circle's girth = 2*pie*radious.

Circle's area = pie*radious*radious

At first, I solved pie with 3 but Mr. Stevonson asked me to do it with 3.14.

Anyway 120=6.28*radious. So radious is about 19. (The number is too long so I rounded off)

So the area is 19*19*3.14= 1133.54

To figure the money, 3000*1133.54= 3400620.

I had to read the number to Mr. Stevonson.

Reading a long number was such a difficult job.

It was 3 million 4 hundred thousand 6 hundred and twenty.

Anyway I was the first(including my friends J and Angela) so Mr.Stevonson cheered us.

I love math though. It was such a nice time.

This must need a creative.